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1 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // SS_CONN.CPP |
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15 // |
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16 // |
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17 #include "ss_connselect.h" |
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18 |
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19 #include <comms-infras/ss_log.h> |
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20 #include "SS_conn.H" |
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21 #include <comms-infras/esock_params_internal.h> |
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22 #include <comms-infras/ss_nodemessages_selector.h> |
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23 |
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24 #include <elements/nm_messages_base.h> |
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25 #include <elements/nm_messages_peer.h> |
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26 |
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27 #include <comms-infras/ss_nodemessages_dataclient.h> |
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28 #include <comms-infras/ss_nodemessages_factory.h> |
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29 #include <comms-infras/ss_nodemessages_internal.h> |
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30 |
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31 |
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32 #ifdef _DEBUG |
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33 // Panic category for "absolutely impossible!" vanilla ASSERT()-type panics from this module |
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34 // (if it could happen through user error then you should give it an explicit, documented, category + code) |
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35 _LIT(KSpecAssert_ESockSSockscnslc, "ESockSSockscnslc"); |
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36 #endif |
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37 |
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38 using namespace ESock; |
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39 using namespace Messages; |
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40 using namespace MeshMachine; |
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41 |
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42 // |
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43 //CSelectionRequest |
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44 CSelectionRequest* CSelectionRequest::NewL(const TRuntimeCtxId& aRequestingClient, const TNodeId& aTierManagerId) |
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45 { |
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46 CSelectionRequest* self = new (ELeave) CSelectionRequest(aRequestingClient,aTierManagerId); |
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47 |
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48 NM_LOG_START_BLOCK(KESockMetaConnectionTag(), _L8("CSelectionRequest::NewL")); |
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49 NM_LOG((KESockMetaConnectionTag(), _L8("[this=0x%08x]"), self)); |
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50 NM_LOG_ADDRESS_EXT(KESockMetaConnectionTag(), aRequestingClient, _L8("Client:")); |
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51 NM_LOG_ADDRESS_EXT(KESockMetaConnectionTag(), aTierManagerId, _L8("TierMgr:")); |
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52 NM_LOG_END_BLOCK(KESockMetaConnectionTag(), KNullDesC8()); |
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53 return self; |
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54 } |
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55 |
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56 CSelectionRequest::CSelectionRequest(const TRuntimeCtxId& aRequestingClient, const TNodeId& aTierManagerId) |
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57 : Messages::ASimpleNodeIdBase(), |
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58 TIfStaticFetcherNearestInHierarchy(this), |
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59 iTierManagerId(aTierManagerId), |
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60 iSelectionStatus(EIdle), |
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61 iPlatsecApiExt(NULL) |
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62 { |
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63 LOG_NODE_CREATE(KESockMetaConnectionTag, CSelectionRequest); |
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64 iRequestingNode.Open(address_cast<TNodeId>(aRequestingClient)); |
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65 iRequest.Open(iRequestingNode, aRequestingClient); |
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66 } |
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67 |
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68 CSelectionRequest::~CSelectionRequest() |
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69 { |
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70 if (iPlatsecApiExt != NULL) |
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71 delete iPlatsecApiExt; |
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72 |
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73 |
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74 iRequestingNode.Close(); |
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75 |
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76 //Properly handled CSR should either complete the request or be cancelled before being destroyed. |
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77 //If the requesting client wants to cancel its request with this CSR, it sends a cancel message. |
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78 //The cancel message is processed (all active requests are being cancelled) and when all complete |
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79 //with error (or select complete) messages, then the error is being send to the requesting client. |
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80 //The requesting client must wait for this error (confirmation to its cancel message) and then |
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81 //it can destroy this CSR, not earlier. |
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82 //This is why we must make sure that iActiveRequests is empty. |
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83 //If this ASSERT fires in your case, make sure that the requesting client obeys the above mentioned |
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84 //protocol. |
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85 __ASSERT_DEBUG(iActiveRequests.Count()==0, User::Panic(KSpecAssert_ESockSSockscnslc, 1)); |
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86 iActiveRequests.Close(); |
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87 |
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88 //The client decided to destroy us. |
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89 //Regardless if we received or didn't receive TSelect, iTopMcprId must be empty now. |
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90 __ASSERT_DEBUG(iTopMcprId.IsNull(), User::Panic(KSpecAssert_ESockSSockscnslc, 2)); |
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91 LOG_NODE_DESTROY(KESockMetaConnectionTag, CSelectionRequest); |
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92 } |
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93 |
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94 //The entry point to the selector. It may be replaced by the mesh machine in the future. |
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95 void CSelectionRequest::ReceivedL(const TRuntimeCtxId& aSender, const TNodeId& /*aRecipient*/, TSignatureBase& aCFMessage) |
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96 { |
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97 if (TEBase::ERealmId == aCFMessage.MessageId().Realm()) |
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98 { |
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99 switch (aCFMessage.MessageId().MessageId()) |
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100 { |
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101 case TEBase::TCancel::EId : |
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102 __ASSERT_DEBUG(iRequestingNode == aSender, User::Panic(KSpecAssert_ESockSSockscnslc, 3)); |
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103 Cancel(); |
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104 break; |
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105 case TEBase::TError::EId: |
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106 { |
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107 if (iSelectionStatus==ERequestingCommsBinder) |
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108 { |
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109 CommsBinderRequestError(aSender, message_cast<TEBase::TError>(aCFMessage)); |
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110 } |
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111 else |
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112 { |
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113 TEBase::TError& error = message_cast<TEBase::TError>(aCFMessage); |
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114 if (error.iMsgId == TCFSelector::TSimpleSelect::Id() |
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115 || error.iMsgId == TCFSelector::TSelect::Id()) |
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116 { |
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117 //TSelect may be used by CConnection or the TopMcpr |
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118 //In both cases the control client must leave on an error. |
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119 TInt idx = FindActiveRequest(aSender); |
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120 if (idx != KErrNotFound && !(iActiveRequests[idx].Flags() & TClientType::ELeaving)) |
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121 { |
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122 RNodeInterface::OpenPostMessageClose(Id(), aSender, TEChild::TLeft().CRef()); |
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123 iActiveRequests[idx].SetFlags(TClientType::ELeaving); |
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124 } |
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125 |
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126 if (aSender == iTopMcprId) |
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127 { |
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128 iTopMcprId.SetNull(); |
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129 } |
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130 } |
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131 SelectionError(aSender, error.iValue); |
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132 } |
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133 } |
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134 break; |
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135 default: |
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136 //TODO - logging |
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137 NM_LOG_START_BLOCK(KESockMetaConnectionTag(), _L8("CSelectionRequest:ReceivedL")); |
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138 NM_LOG((KESockMetaConnectionTag(), _L8("[this=0x%08x] ERROR: KErrNotSupported "), this)); |
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139 NM_LOG_MESSAGE(KESockMetaConnectionTag(), aCFMessage); |
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140 NM_LOG_END_BLOCK(KESockMetaConnectionTag(), KNullDesC8()); |
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141 __ASSERT_DEBUG(iRequestingNode==aSender, User::Panic(KSpecAssert_ESockSSockscnslc, 4)); |
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142 |
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143 __ASSERT_DEBUG(EFalse, User::Panic(KSpecAssert_ESockSSockscnslc, 5)); //For debug configurations |
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144 User::Leave(KErrNotSupported); //For release configurations |
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145 } |
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146 } |
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147 else if ( aCFMessage.IsMessage<TEChild::TDestroy>() ) |
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148 { |
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149 __ASSERT_DEBUG(iRequestingNode==aSender, User::Panic(KSpecAssert_ESockSSockscnslc, 6)); |
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150 InitialiseDestroy(); |
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151 } |
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152 else if (TEPeer::ERealmId == aCFMessage.MessageId().Realm()) |
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153 { |
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154 switch (aCFMessage.MessageId().MessageId()) |
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155 { |
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156 case TEPeer::TLeaveComplete::EId: |
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157 __ASSERT_DEBUG(aSender==iTopMcprId || iTopMcprId.IsNull(), User::Panic(KSpecAssert_ESockSSockscnslc, 7)); |
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158 iTopMcprId.SetNull(); |
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159 delete this; |
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160 break; |
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161 default: |
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162 //TODO - logging |
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163 NM_LOG_START_BLOCK(KESockMetaConnectionTag(), _L8("CSelectionRequest:ReceivedL")); |
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164 NM_LOG((KESockMetaConnectionTag(), _L8("[this=0x%08x] ERROR: KErrNotSupported "), this)); |
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165 NM_LOG_MESSAGE(KESockMetaConnectionTag(), aCFMessage); |
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166 NM_LOG_END_BLOCK(KESockMetaConnectionTag(), KNullDesC8()); |
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167 |
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168 __ASSERT_DEBUG(EFalse, User::Panic(KSpecAssert_ESockSSockscnslc, 8)); //For debug configurations |
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169 User::Leave(KErrNotSupported); //For release configurations |
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170 } |
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171 } |
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172 else if (TCFSelector::ERealmId == aCFMessage.MessageId().Realm()) |
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173 { |
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174 switch (aCFMessage.MessageId().MessageId()) |
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175 { |
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176 case TCFSelector::TSelect::EId: |
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177 __ASSERT_DEBUG(aSender == iRequestingNode.RecipientId(), User::Panic(KSpecAssert_ESockSSockscnslc, 9)); |
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178 SelectConnPrefList(message_cast<const TCFSelector::TSelect>(aCFMessage).iConnPrefList); |
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179 break; |
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180 |
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181 case TCFSelector::TSimpleSelect::EId: |
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182 __ASSERT_DEBUG(iRequestingNode == aSender, User::Panic(KSpecAssert_ESockSSockscnslc, 10)); |
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183 iRequest.Open(iRequestingNode, aSender); |
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184 Select(message_cast<const TCFSelector::TSimpleSelect>(aCFMessage).iSelectionPrefs); |
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185 break; |
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186 case TCFSelector::TSelectComplete::EId: |
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187 { |
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188 TCFSelector::TSelectComplete& msg = message_cast<TCFSelector::TSelectComplete>(aCFMessage); |
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189 SelectComplete(address_cast<TNodeId>(aSender), msg.iNodeId, msg.iProviderInfo); |
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190 } |
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191 break; |
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192 default: |
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193 //TODO - logging |
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194 NM_LOG_START_BLOCK(KESockMetaConnectionTag(), _L8("CSelectionRequest:ReceivedL")); |
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195 NM_LOG((KESockMetaConnectionTag(), _L8("[this=0x%08x] ERROR: KErrNotSupported "), this)); |
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196 NM_LOG_MESSAGE(KESockMetaConnectionTag(), aCFMessage); |
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197 NM_LOG_END_BLOCK(KESockMetaConnectionTag(), KNullDesC8()); |
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198 |
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199 __ASSERT_DEBUG(EFalse, User::Panic(KSpecAssert_ESockSSockscnslc, 11)); //For debug configurations |
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200 User::Leave(KErrNotSupported); //For release configurations |
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201 } |
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202 } |
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203 else if ( aCFMessage.IsMessage<TCFServiceProvider::TCommsBinderResponse>() ) |
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204 { |
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205 CommsBinderResponse(message_cast<TCFServiceProvider::TCommsBinderResponse>(aCFMessage)); |
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206 } |
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207 else if ( aCFMessage.IsMessage<TCFDataClient::TBindToComplete>() ) |
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208 { |
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209 __ASSERT_DEBUG(KErrNone==message_cast<TCFDataClient::TBindToComplete>(aCFMessage).iValue || iRequestingNode==aSender, User::Panic(KSpecAssert_ESockSSockscnslc, 12)); |
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210 __ASSERT_DEBUG(KErrNone==message_cast<TCFDataClient::TBindToComplete>(aCFMessage).iValue || iSelectionStatus==ERequestingCommsBinder || iSelectionStatus==EIdle, User::Panic(KSpecAssert_ESockSSockscnslc, 13)); |
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211 __ASSERT_DEBUG(KErrNone==message_cast<TCFDataClient::TBindToComplete>(aCFMessage).iValue || !iTopMcprId.IsNull(), User::Panic(KSpecAssert_ESockSSockscnslc, 14)); //iTopMcprId must be selected by now! |
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212 RNodeInterface::OpenPostMessageClose(Id(), iTopMcprId, aCFMessage); |
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213 } |
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214 else if ( aCFMessage.IsMessage<TCFMessage::TStateChange>() ) |
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215 { |
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216 if (!iDestroying) |
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217 { |
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218 // When destroying prevent the status change being posted to |
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219 // the Implicit Flow Request which may already have been deleted. |
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220 iRequestingNode.PostMessage(Id(), aCFMessage); |
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221 } |
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222 } |
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223 else if ( aCFMessage.IsMessage<TCFMessage::TProvisionConnectionInfo>() ) |
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224 { |
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225 __ASSERT_DEBUG(iRequestingNode == aSender, User::Panic(KSpecAssert_ESockSSockscnslc, 15)); |
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226 Provision(message_cast<const TCFMessage::TProvisionConnectionInfo>(aCFMessage).iPtr); |
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227 } |
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228 else if ( aCFMessage.IsMessage<TCFPeer::TJoinComplete>() ) |
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229 { |
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230 JoinComplete(address_cast<TNodeId>(aSender), message_cast<TCFPeer::TJoinComplete>(aCFMessage)); |
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231 } |
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232 else |
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233 { |
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234 //TODO - logging |
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235 NM_LOG_START_BLOCK(KESockMetaConnectionTag(), _L8("CSelectionRequest:ReceivedL")); |
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236 NM_LOG((KESockMetaConnectionTag(), _L8("[this=0x%08x] ERROR: KErrNotSupported "), this)); |
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237 NM_LOG_MESSAGE(KESockMetaConnectionTag(), aCFMessage); |
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238 NM_LOG_END_BLOCK(KESockMetaConnectionTag(), KNullDesC8()); |
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239 |
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240 __ASSERT_DEBUG(EFalse, User::Panic(KSpecAssert_ESockSSockscnslc, 16)); //For debug configurations |
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241 User::Leave(KErrNotSupported); //For release configurations |
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242 } |
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243 } |
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244 |
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245 void CSelectionRequest::InitialiseDestroy() |
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246 { |
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247 __ASSERT_DEBUG(!iDestroying, User::Panic(KSpecAssert_ESockSSockscnslc, 17)); |
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248 iDestroying = ETrue; |
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249 |
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250 //We are not ready to destruct ourselves yet, waiting for TErrors |
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251 if (iActiveRequests.Count()!=0) |
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252 { |
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253 return; |
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254 } |
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255 |
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256 //We have never joined the top mcpr, clear it now |
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257 if (!iJoined) |
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258 { |
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259 iTopMcprId.SetNull(); |
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260 } |
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261 |
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262 //We are ready but we have to leave the iTopMcprId first |
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263 if (!iTopMcprId.IsNull()) |
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264 { |
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265 RNodeInterface::OpenPostMessageClose(Id(), iTopMcprId, TEPeer::TLeaveRequest().CRef()); |
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266 return; |
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267 } |
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268 |
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269 //We are ready to be deleted |
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270 delete this; |
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271 return; |
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272 } |
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273 |
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274 //Selection requests start here. |
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275 void CSelectionRequest::Select(const TSelectionPrefs& aSelectionPreferences) |
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276 { |
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277 NM_LOG_START_BLOCK(KESockMetaConnectionTag(), _L8("CSelectionRequest::Select")); |
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278 NM_LOG_ADDRESS_EXT(KESockMetaConnectionTag(), iRequestingNode.RecipientId(), _L8("Client:")); |
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279 NM_LOG((KESockMetaConnectionTag(), _L8("[this=0x%08x]"), this)); |
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280 NM_LOG_STMT(TUint selectionScope = aSelectionPreferences.Scope()); |
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281 NM_LOG((KESockMetaConnectionTag(), _L8("%s"), (selectionScope & TSelectionPrefs::EExplicitConnection)?_S8("EExplicitConnection"):_S8("SelectTopProviderOnly"))); |
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282 |
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283 LOG( ESockLog::Printf(KESockMetaConnectionTag, _L8("CSelectionRequest %08x:\tSelect: %s."), this, (selectionScope&TSelectionPrefs::ESelectFromExisting)?_S8("ESelectFromExisting"):_S8("SelectAndCreate"))); |
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284 LOG( ESockLog::Printf(KESockMetaConnectionTag, _L8("CSelectionRequest %08x:\tSelect: %s."), this, (selectionScope&TSelectionPrefs::ERequestCommsBinder)?_S8("ERequestCommsBinder"):_S8("DoNotRequestCommsBinder"))); |
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285 |
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286 NM_LOG_END_BLOCK(KESockMetaConnectionTag(), KNullDesC8()); |
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287 |
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288 //The requesting client may only request selection once. |
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289 //If this assert fires in your case, please make sure the requesting client obeys the protocol. |
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290 __ASSERT_DEBUG(iSelectionStatus==EIdle, User::Panic(KSpecAssert_ESockSSockscnslc, 18)); |
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291 __ASSERT_DEBUG(iTopMcprId.IsNull(), User::Panic(KSpecAssert_ESockSSockscnslc, 19)); |
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292 iSelectionStatus = ESelecting; |
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293 iSelectionPreferences.Copy(aSelectionPreferences); |
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294 __ASSERT_DEBUG(iActiveRequests.Count()==0, User::Panic(KSpecAssert_ESockSSockscnslc, 20)); |
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295 if (KErrNone==iActiveRequests.Append(RNodeInterface())) |
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296 { |
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297 RNodeInterface& tierManager = iActiveRequests[0]; |
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298 tierManager.Open(iTierManagerId); |
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299 tierManager.PostMessage(Id(), TCFPeer::TJoinRequest(Id(), TClientType(TCFClientType::ECtrl)).CRef()); |
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300 } |
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301 else |
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302 { |
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303 //We have an OOM condition here. Since we have just started serving this request, |
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304 //we must report this error to the requesting client (see SelectError()). |
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305 SelectionError(Id(), KErrNoMemory); |
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306 } |
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307 } |
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308 |
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309 void CSelectionRequest::SelectConnPrefList(const RConnPrefList& aConnPrefList) |
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310 { |
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311 //The requesting client may only request selection once. |
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312 //If this assert fires in your case, please make sure the requesting client obeys the protocol. |
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313 __ASSERT_DEBUG(iSelectionStatus == EIdle, User::Panic(KSpecAssert_ESockSSockscnslc, 21)); |
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314 __ASSERT_DEBUG(iTopMcprId == TNodeId::NullId(), User::Panic(KSpecAssert_ESockSSockscnslc, 22)); |
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315 iSelectionStatus = ESelecting; |
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316 iConnPrefList = aConnPrefList; |
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317 |
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318 ESock::RConnPrefList::TIter<TConnCSRPref> iterCSR = iConnPrefList.getIter<TConnCSRPref>(); |
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319 //There should be one and only one CSR pref |
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320 __ASSERT_DEBUG(iterCSR[0] != NULL || iterCSR[1] == NULL , User::Panic(KSpecAssert_ESockSSockscnslc, 23)); |
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321 TConnCSRPref* pref = iterCSR[0]; |
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322 iSelectionPreferences.SetScope(pref->Scope()); |
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323 iSelectionPreferences.SetFlags(pref->Flags()); |
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324 iSelectionPreferences.SetSubSessionUniqueId(pref->Scope()); |
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325 |
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326 __ASSERT_DEBUG(iActiveRequests.Count()==0, User::Panic(KSpecAssert_ESockSSockscnslc, 24)); |
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327 if (KErrNone==iActiveRequests.Append(RNodeInterface())) |
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328 { |
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329 RNodeInterface& tierManager = iActiveRequests[iActiveRequests.Count()-1]; |
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330 tierManager.Open(iTierManagerId); |
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331 tierManager.PostMessage( |
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332 Id(), |
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333 TCFPeer::TJoinRequest(Id(), TClientType(TCFClientType::ECtrl)).CRef() |
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334 ); |
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335 } |
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336 else |
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337 { |
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338 //We have an OOM condition here. Since we have just started serving this request, |
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339 //we must report this error to the requesting client (see SelectError()). |
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340 SelectionError(Id(), KErrNoMemory); |
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341 } |
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342 } |
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343 |
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344 void CSelectionRequest::Provision(const Meta::SMetaData* aProvisionConfig) |
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345 { |
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346 /* if (!aProvisionConfig->IsTypeOf(STypeId::CreateSTypeId(CConnectionInfo::EUid, CConnectionInfo::ETypeId))) |
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347 return;*/ |
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348 iProvision = aProvisionConfig; |
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349 } |
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350 |
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351 void CSelectionRequest::Cancel() |
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352 { |
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353 NM_LOG_START_BLOCK(KESockMetaConnectionTag(), _L8("CSelectionRequest::Cancel")); |
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354 NM_LOG((KESockMetaConnectionTag, _L8("[this=0x%08x]"), this)); |
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355 NM_LOG_ADDRESS_EXT(KESockMetaConnectionTag(), iRequestingNode.RecipientId(), _L8("Client:")); |
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356 NM_LOG_END_BLOCK(KESockMetaConnectionTag(), KNullDesC8()); |
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357 |
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358 //Is the requesting client trying to cancel its request again? |
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359 __ASSERT_DEBUG(iSelectionStatus!=ECancelling, User::Panic(KSpecAssert_ESockSSockscnslc, 25)); |
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360 if (iSelectionStatus!=EIdle) |
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361 { |
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362 iSelectionStatus = ECancelling; |
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363 iOriginalError = KErrCancel; |
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364 |
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365 TEBase::TCancel cancel; |
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366 for (TInt i = iActiveRequests.Count()-1; i >= 0; i--) |
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367 { |
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368 //Send cancel and wait for error messages before destructing this object. |
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369 iActiveRequests[i].PostMessage(Id(), cancel); |
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370 } |
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371 //We have not completed the original request yet, do not send |
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372 //an error message to the requesting client from here. |
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373 //When the last error (or select complete) message has been returned |
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374 //from the last MCpr we have cancelled, then we send our cancel's |
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375 //confirmation from SelectionFinished(). |
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376 } |
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377 } |
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378 |
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379 void CSelectionRequest::JoinComplete(const TNodeId& aSender, TCFPeer::TJoinComplete& /*aCFMessage*/) |
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380 { |
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381 if (KErrNone==iOriginalError) |
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382 { |
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383 if (iTopMcprId.IsNull()) |
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384 { |
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385 __ASSERT_DEBUG(iActiveRequests[0].RecipientId()==aSender && iTierManagerId==aSender, User::Panic(KSpecAssert_ESockSSockscnslc, 26)); //It has surely been sent by the tier manager. |
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386 |
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387 if(iConnPrefList.Count() < 1) |
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388 { |
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389 iActiveRequests[0].PostMessage(Id(), TCFSelector::TSimpleSelect(iSelectionPreferences).CRef()); |
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390 } |
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391 else |
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392 { |
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393 iActiveRequests[0].PostMessage(Id(), TCFSelector::TSelect(iConnPrefList).CRef()); |
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394 } |
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395 } |
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396 else |
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397 { |
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398 if (aSender==iTopMcprId) |
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399 { |
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400 iJoined = ETrue; |
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401 |
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402 TUint selectionScope = iSelectionPreferences.Scope(); |
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403 if (!(selectionScope & TSelectionPrefs::EExplicitConnection)) |
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404 { |
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405 return; |
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406 } |
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407 } |
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408 |
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409 if(iConnPrefList.Count() < 1) |
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410 { |
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411 RNodeInterface::OpenPostMessageClose(Id(), aSender, TCFSelector::TSimpleSelect(iSelectionPreferences).CRef()); |
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412 } |
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413 else |
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414 { |
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415 RNodeInterface::OpenPostMessageClose( |
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416 Id(), |
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417 aSender, |
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418 TCFSelector::TSelect(iConnPrefList).CRef() |
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419 ); |
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420 } |
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421 } |
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422 } |
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423 else |
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424 { |
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425 TInt idx = FindActiveRequest(aSender); |
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426 if (idx != KErrNotFound && !(iActiveRequests[idx].Flags() & TClientType::ELeaving)) |
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427 { |
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428 RNodeInterface::OpenPostMessageClose(Id(), aSender, TEChild::TLeft().CRef()); |
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429 iActiveRequests[idx].SetFlags(TClientType::ELeaving); |
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430 } |
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431 |
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432 ProviderSelectionFinished(aSender); |
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433 |
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434 if (iActiveRequests.Count()==0) |
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435 { //The active list is empty which means that we have finished serving the selection request. |
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436 SelectionFinished(); |
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437 } |
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438 } |
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439 } |
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440 |
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441 void CSelectionRequest::CommsBinderResponse(const TCFServiceProvider::TCommsBinderResponse& aMsg) |
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442 { |
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443 iRequest.ReplyTo(Id(), TCFDataClient::TBindTo(aMsg.iNodeId).CRef()); |
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444 iSelectionStatus = EIdle; |
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445 } |
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446 |
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447 //This fn is called when a provider has been successfuly selected. |
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448 void CSelectionRequest::SelectComplete(const TNodeId& aSenderId, const TNodeId& aMcprId, const TProviderInfo& aMcprInfo) |
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449 { |
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450 NM_LOG_START_BLOCK(KESockMetaConnectionTag(), _L8("CSelectionRequest::SelectComplete")); |
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451 NM_LOG((KESockMetaConnectionTag(), _L8("[this=0x%08x]"), this)); |
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452 NM_LOG_ADDRESS(KESockMetaConnectionTag(), aSenderId); |
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453 NM_LOG_ADDRESS(KESockMetaConnectionTag(), aMcprId); |
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454 NM_LOG_END_BLOCK(KESockMetaConnectionTag(), KNullDesC8()); |
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455 |
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456 __ASSERT_DEBUG(!aSenderId.IsNull(), User::Panic(KSpecAssert_ESockSSockscnslc, 27)); //The sender must exist and be in the active list |
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457 |
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458 //The sender must be in the active list (or it is the tier manager) |
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459 __ASSERT_DEBUG(KErrNotFound!=FindActiveRequest(aSenderId), User::Panic(KSpecAssert_ESockSSockscnslc, 28)); |
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460 |
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461 if (aMcprId.IsNull()) |
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462 { //Last SelectComplete from aSenderId. Remove from the active list. |
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463 ProviderSelectionFinished(aSenderId); |
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464 } |
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465 else |
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466 { |
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467 HandleProviderSelection(aMcprId); |
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468 } |
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469 |
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470 if (iTopMcprId.IsNull()) |
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471 { |
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472 //Top provider has been selected (it must not be null since we have received SelectComplete and not Error). |
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473 |
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474 NM_LOG_ADDRESS_EXT(KESockMetaConnectionTag, aMcprId, _L8("Top provider selected: ")); |
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475 |
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476 //We should have never reveive SelectComplete(NULL) as the only select complete. |
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477 //If even one provider cannot be selected we should have received an error message! |
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478 __ASSERT_DEBUG(!aMcprId.IsNull(), User::Panic(KSpecAssert_ESockSSockscnslc, 30)); |
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479 __ASSERT_DEBUG(iActiveRequests[0].RecipientId()==aSenderId, User::Panic(KSpecAssert_ESockSSockscnslc, 29)); //It has surely been sent by the tier manager. |
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480 iTopMcprId = aMcprId; |
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481 iTopMcprInfo = aMcprInfo; |
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482 } |
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483 else if (iActiveRequests.Count()==0) |
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484 { //The active list is empty which means that we have finished serving the selection request. |
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485 SelectionFinished(); |
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486 } |
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487 } |
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488 |
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489 //This fn is called when we receive or generate an error during selection. |
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490 void CSelectionRequest::SelectionError(const TRuntimeCtxId& aSenderId, TInt aError) |
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491 { |
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492 //Remember the error because for legacy selection we need to use it |
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493 if (KErrNone==iOriginalError) |
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494 { |
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495 iOriginalError = aError; |
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496 } |
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497 |
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498 NM_LOG_START_BLOCK(KESockMetaConnectionTag(), _L8("CSelectionRequest::SelectionError")); |
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499 NM_LOG((KESockMetaConnectionTag(), _L8("[this=0x%08x] [aError=%d]"), this, aError)); |
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500 NM_LOG_ADDRESS_EXT(KESockMetaConnectionTag(), iRequestingNode.RecipientId(), _L8("Client:")); |
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501 NM_LOG_END_BLOCK(KESockMetaConnectionTag(), KNullDesC8()); |
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502 |
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503 __ASSERT_DEBUG(!aSenderId.IsNull(), User::Panic(KSpecAssert_ESockSSockscnslc, 31)); //The sender must exist and be in the active list |
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504 __ASSERT_DEBUG(iSelectionStatus!=ERequestingCommsBinder, User::Panic(KSpecAssert_ESockSSockscnslc, 32)); |
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505 |
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506 TInt idx = FindActiveRequest(aSenderId); |
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507 if(KErrNotFound != idx) |
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508 { |
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509 //Rather than leaving the service provider (sender) that has send as the error message, |
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510 //we are removing it from our list. Any further comunication with the node could result |
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511 //in further errors. |
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512 iActiveRequests[idx].Close(); |
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513 iActiveRequests.Remove(idx); |
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514 } |
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515 |
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516 //If the active list is empty, we have unsuccessfuly finished the whole selection. |
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517 if (iActiveRequests.Count()==0) |
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518 { |
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519 SelectionFinished(); |
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520 } |
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521 } |
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522 |
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523 //This fn is called when we receive an error instead of CommsBinder. |
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524 void CSelectionRequest::CommsBinderRequestError(const TRuntimeCtxId& aSenderId, TEBase::TError& aCFMessage) |
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525 { |
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526 // Preventing unused variable warnings. |
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527 #ifndef _DEBUG |
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528 (void)aSenderId; |
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529 #endif |
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530 |
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531 //Remember the error because for legacy selection we need to use it |
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532 if (KErrNone==iOriginalError) |
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533 { |
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534 iOriginalError = aCFMessage.iValue; |
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535 } |
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536 |
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537 NM_LOG_START_BLOCK(KESockMetaConnectionTag(), _L8("CSelectionRequest::CommsBinderRequestError")); |
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538 NM_LOG((KESockMetaConnectionTag(), _L8("[this=0x%08x]"), this)); |
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539 NM_LOG_ADDRESS_EXT(KESockMetaConnectionTag(), iRequestingNode.RecipientId(), _L8("Client:")); |
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540 NM_LOG_MESSAGE(KESockMetaConnectionTag(), aCFMessage); |
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541 NM_LOG_END_BLOCK(KESockMetaConnectionTag(), KNullDesC8()); |
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542 |
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543 |
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544 __ASSERT_DEBUG(!aSenderId.IsNull(), User::Panic(KSpecAssert_ESockSSockscnslc, 33)); //The sender must exist and be in the active list |
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545 __ASSERT_DEBUG(iSelectionStatus==ERequestingCommsBinder, User::Panic(KSpecAssert_ESockSSockscnslc, 34)); |
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546 __ASSERT_DEBUG(aSenderId==iTopMcprId, User::Panic(KSpecAssert_ESockSSockscnslc, 35)); //CommsBinder error, this can only come from the iTopMcprId |
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547 //This is an error that needs to be reported to the requesting client. |
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548 PostError(TCFServiceProvider::TCommsBinderRequest::Id(), iOriginalError); |
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549 } |
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550 |
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551 //We call this fn when we need to report the selection error to the originating client, |
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552 //but after the selection is finished |
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553 void CSelectionRequest::PostError(const TNodeSignal::TMessageId& aMessageId, TInt aError) |
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554 { |
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555 //Some non-recoverable error has occured and we want to report it back to the requesting client. |
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556 |
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557 //Because the selection is finished now, there shouldn'd be any more outstanding |
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558 //selections going on below. |
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559 __ASSERT_DEBUG(iActiveRequests.Count()==0, User::Panic(KSpecAssert_ESockSSockscnslc, 36)); |
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560 |
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561 iRequest.ReplyTo(Id(), TEBase::TError(aMessageId,aError).CRef()); |
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562 } |
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563 |
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564 void CSelectionRequest::HandleProviderSelection(const TNodeId& aMcprId) |
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565 { |
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566 NM_LOG_START_BLOCK(KESockMetaConnectionTag(), _L8("CSelectionRequest::HandleProviderSelection")); |
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567 NM_LOG((KESockMetaConnectionTag(), _L8("[this=0x%08x]"), this)); |
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568 NM_LOG_ADDRESS(KESockMetaConnectionTag(), aMcprId); |
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569 NM_LOG_END_BLOCK(KESockMetaConnectionTag(), KNullDesC8()); |
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570 |
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571 |
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572 // Select next layer provider only if the selection mode is EExplicitConnection |
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573 TUint selectionScope = iSelectionPreferences.Scope(); |
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574 if (selectionScope & TSelectionPrefs::EExplicitConnection) |
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575 { |
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576 //Are we currently waiting for this provider to complete our selection request? |
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577 if (KErrNotFound==FindActiveRequest(aMcprId)) |
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578 { |
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579 if (KErrNone==iActiveRequests.Append(RNodeInterface())) |
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580 { |
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581 |
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582 RNodeInterface& mcpr = iActiveRequests[iActiveRequests.Count()-1]; |
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583 mcpr.Open(aMcprId, TClientType(TCFClientType::EServProvider)); |
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584 mcpr.PostMessage(Id(), TCFServiceProvider::TJoinRequest(Id(), TClientType::EAdministrative).CRef()); //Join the provider |
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585 |
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586 } |
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587 else |
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588 { |
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589 //We have an OOM condition here. |
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590 SelectionError(Id(), KErrNoMemory); |
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591 } |
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592 } |
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593 } |
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594 else if (selectionScope & TSelectionPrefs::ERequestCommsBinder && KErrNone==iOriginalError) |
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595 { |
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596 __ASSERT_DEBUG(iTopMcprId.IsNull(), User::Panic(KSpecAssert_ESockSSockscnslc, 37)); |
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597 |
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598 RNodeInterface::OpenPostMessageClose(Id(), aMcprId, TCFServiceProvider::TJoinRequest(Id(), TCFClientType::EAdministrative).CRef()); |
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599 } |
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600 } |
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601 |
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602 void CSelectionRequest::ProviderSelectionFinished(const TRuntimeCtxId& aMcprId) |
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603 { |
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604 NM_LOG_START_BLOCK(KESockMetaConnectionTag(), _L8("CSelectionRequest::ProviderSelectionFinished")); |
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605 NM_LOG((KESockMetaConnectionTag(), _L8("[this=0x%08x]"), this)); |
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606 NM_LOG_ADDRESS_EXT(KESockMetaConnectionTag(), aMcprId, _L8("aMcprId:")); |
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607 NM_LOG_END_BLOCK(KESockMetaConnectionTag(), KNullDesC8()); |
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608 |
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609 TInt idx = FindActiveRequest(aMcprId); |
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610 __ASSERT_DEBUG(KErrNotFound!=idx, User::Panic(KSpecAssert_ESockSSockscnslc, 38)); //Sender must be in the active list |
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611 |
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612 //Leave the providers but do not leave: |
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613 //1) The tier manager, as it has never been joined. |
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614 //2) The top provider, as it needs to be alive for as long as the requestor is happy to delete us |
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615 const TNodeId& selectionProvider = iActiveRequests[idx].RecipientId(); |
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616 if (iTopMcprId!=selectionProvider) //Do not leave the top MCpr yet |
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617 { |
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618 if (idx != KErrNotFound && !(iActiveRequests[idx].Flags() & TClientType::ELeaving)) |
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619 { |
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620 RNodeInterface::OpenPostMessageClose(Id(), aMcprId, TEChild::TLeft().CRef()); |
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621 iActiveRequests[idx].SetFlags(TClientType::ELeaving); |
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622 } |
|
623 } |
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624 |
|
625 //Remove sender from the active list |
|
626 iActiveRequests[idx].Close(); |
|
627 iActiveRequests.Remove(idx); |
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628 } |
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629 |
|
630 //This fn is called when the whole plane (or just one provider) selection is finished. |
|
631 //Now we can either start the selected (top) provider or reply to the requesting client |
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632 //or just cleanup if the client has cancelled us in the meantime. |
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633 void CSelectionRequest::SelectionFinished() |
|
634 { |
|
635 LOG(ESockLog::Printf(KESockMetaConnectionTag, _L8("CSelectionRequest::SelectionFinished [this=0x%08x]"), this)); |
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636 |
|
637 if (iSelectionStatus==ECancelling) |
|
638 { //The requesting client has cancelled us. |
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639 LOG(ESockLog::Printf(KESockMetaConnectionTag, _L8("CSelectionRequest::SelectionFinished - cancelled"), this)); |
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640 |
|
641 PostError(TEBase::TCancel::Id(),KErrCancel); |
|
642 if (!iTopMcprId.IsNull() && iJoined) |
|
643 { |
|
644 //We are ready to destroy ourselves now but we have the iTopMcprId to leave first |
|
645 RNodeInterface::OpenPostMessageClose(Id(), iTopMcprId, TEPeer::TLeaveRequest().CRef()); |
|
646 } |
|
647 return; |
|
648 } |
|
649 |
|
650 //We can continue with Starting. |
|
651 if (KErrNone!=iOriginalError || iTopMcprId.IsNull()) |
|
652 { |
|
653 LOG(ESockLog::Printf(KESockMetaConnectionTag, _L8("CSelectionRequest::SelectionFinished - no top provider found"), this)); |
|
654 |
|
655 //We don't even have the top provider selected. |
|
656 //This is an error that needs to be reported to the requesting client. |
|
657 PostError(TCFSelector::TSimpleSelect::Id(),iOriginalError); |
|
658 return; |
|
659 } |
|
660 |
|
661 //We can continue with Requesting Comms Binder. |
|
662 TUint selectionScope = iSelectionPreferences.Scope(); |
|
663 if (selectionScope & TSelectionPrefs::ERequestCommsBinder) |
|
664 { |
|
665 LOG(ESockLog::Printf(KESockMetaConnectionTag, _L8("CSelectionRequest::SelectionFinished - binding to provider (MCpr Tier Id: %X, AP Id: %d)"), this, iTopMcprInfo.TierId().iUid, iTopMcprInfo.APId())); |
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666 |
|
667 TNodeCtxId sender(ECFActivityBinderRequest, Id()); //TODO[PROD]: Does this make sense to use ECFActivityBinderRequest here? |
|
668 RNodeInterface::OpenPostMessageClose(sender, iTopMcprId, TCFServiceProvider::TCommsBinderRequest().CRef()); |
|
669 iSelectionStatus = ERequestingCommsBinder; |
|
670 } |
|
671 else |
|
672 { |
|
673 LOG(ESockLog::Printf(KESockMetaConnectionTag, _L8("CSelectionRequest::SelectionFinished - selected provider (MCpr Tier Id: %X, AP Id: %d)"), this, iTopMcprInfo.TierId().iUid, iTopMcprInfo.APId())); |
|
674 |
|
675 //Finish the selection |
|
676 //We will leave the top provider in ~CSelectionRequest() |
|
677 iRequest.PostMessage(Id(), TCFSelector::TSelectComplete(iTopMcprId,iTopMcprInfo).CRef()); |
|
678 } |
|
679 } |
|
680 |
|
681 TInt CSelectionRequest::FindActiveRequest(const TRuntimeCtxId& aMcprId) |
|
682 { |
|
683 for (TInt i = iActiveRequests.Count()-1; i >= 0; i--) |
|
684 { |
|
685 if (iActiveRequests[i] == aMcprId) |
|
686 { |
|
687 return i; |
|
688 } |
|
689 } |
|
690 |
|
691 return KErrNotFound; |
|
692 } |
|
693 |
|
694 TInt CSelectionRequest::SecureId(TSecureId& aResult) const |
|
695 { |
|
696 __ASSERT_DEBUG(iPlatsecApiExt, User::Panic(KSpecAssert_ESockSSockscnslc, 39)); |
|
697 return iPlatsecApiExt->SecureId(aResult); |
|
698 } |
|
699 |
|
700 TInt CSelectionRequest::VendorId(TVendorId& aResult) const |
|
701 { |
|
702 __ASSERT_DEBUG(iPlatsecApiExt, User::Panic(KSpecAssert_ESockSSockscnslc, 40)); |
|
703 return iPlatsecApiExt->VendorId(aResult); |
|
704 } |
|
705 |
|
706 TBool CSelectionRequest::HasCapability(const TCapability aCapability) const |
|
707 { |
|
708 __ASSERT_DEBUG(iPlatsecApiExt, User::Panic(KSpecAssert_ESockSSockscnslc, 41)); |
|
709 return iPlatsecApiExt->HasCapability(aCapability); |
|
710 } |
|
711 |
|
712 TInt CSelectionRequest::CheckPolicy(const TSecurityPolicy& aPolicy) const |
|
713 { |
|
714 __ASSERT_DEBUG(iPlatsecApiExt, User::Panic(KSpecAssert_ESockSSockscnslc, 42)); |
|
715 return iPlatsecApiExt->CheckPolicy(aPolicy); |
|
716 } |
|
717 |
|
718 NetInterfaces::TInterfaceControl* CSelectionRequest::FetchNodeInterfaceControlL(TInt aInterfaceId) |
|
719 { |
|
720 if (aInterfaceId == MPlatsecApiExt::KInterfaceId) |
|
721 { |
|
722 if (iPlatsecApiExt) |
|
723 { |
|
724 return this; |
|
725 } |
|
726 |
|
727 if (iProvision && iProvision->GetTypeId() == Meta::STypeId::CreateSTypeId(CConnectionInfo::EUid, CConnectionInfo::ETypeId)) |
|
728 { |
|
729 iPlatsecApiExt = new(ELeave) ASubSessionPlatsecApiExt(static_cast<const CConnectionInfo*>(iProvision)->SubSessionId()); |
|
730 return this; |
|
731 } |
|
732 } |
|
733 |
|
734 return Messages::ANode::FetchNodeInterfaceControlL(aInterfaceId); |
|
735 } |
|
736 |
|
737 void CSelectionRequest::ReturnInterfacePtrL(MPlatsecApiExt*& aInterface) |
|
738 { |
|
739 if (iPlatsecApiExt) |
|
740 aInterface = this; |
|
741 else |
|
742 aInterface = NULL; |
|
743 } |
|
744 |